The area of the rectangle ABCD is 30

The area of the rectangle ABCD is 30. The points E and F are on the diagonal AC as shown, and 2(AE + FC) = 3 EF. What is the area of △BEF ?

This problem refers to a figure in its source book that isn't reproduced here.

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #33759